Loom attachment



SePf' 7, 1943- H. H. HUGHES LOOM ATTACHMENT Filed July 17, 1941 5Sheets-Sheet l LOOM ATTACHMENT Filed July 17, 1941 5 Sheets-SheetA 2Inventor v Sept 7, 1943- H. H. HUGHES 2,328,981

LOOM ATTACHMENT Filed July 17. 1941 5 sheets-sheet 5 jfl/9.0i

Sept 7, 1943. H. H. HUGHES v 2,328,981

LOOM ATTACHMENT Filed July 17, '1941 5 sheets-sheet 4 nventor Sept. 7,1943.' H, H. HUGHES 2,328,981 I LooM ATTACHMENT Filed July 17, 1941 5Sheets-Sheet 5 Znwcntor 3S l MZZrZfr Egg/7m' "Patented Sept. 7, 14943 y.c LOOM ATTACHMENT n i `Herbert .ughnliughes, Columbus, assigner Thepresent invention relates toloom attachments, and more particularly tocertain improvevlments-in cut` measurers and signalsgfor textile,weaving machinery. V

n In trie textile trade, @10th is generally soid in i rayardage-basis,that is in continuous'deflnite lengths because of certain Well knownadvanjtages. i i g ufiAn object of the presentinvention is to securemeasuring of such denite length in that the i .loomis .automaticallystoppedl at the completion .of-this deiinitejlength which is generallyreferred ltocas a cut; and the invention also contemf `:plates that asignal, `preferably a visual signal,

` L V. be given as to the cause of loom stoppage in order "that the loomattendant or 4operator shall not be `deceived as to the causeof suchstoppage. fffModern looms are equipped with avariety of 4stopwmotionsfor the purpose of stopping the loomin certain `eventualities,"such for`instance as the breaking of the warp thread. Stoppage .undernlsuchconditions requires a repair. As a result,` as sbon' as the loom isstopped theloom fixerior attendant begins to `examine the stalled'machinery for defects or deciencies to `repair lingorder that theloperation of the loom may be `fr esumedat the earliest practicablemoment.

It is therefore an object of the invention to provide in connectionwiththe warp stop motion asignal device forfshowing' immediately 4tothe`attendant that thegstoppage of the loom was not occasioned by any causedemanding repair @but only by completion fof therequisiteA linearyardage; to the end that the attendant may .tgrapidly put 'the loom`back into weaving perl- 1 forrn'anca i c f .n.glAnothenobject of `the.invention is to utilize the electric 'stop motion 4now found in standardequipmenton conventional looms on whichto 5 vbase extension circuitsincluding a controller and switches for causing this standard stopmotion to be actuated on the production 'of the `With the foregoing andother objects in Aview, the. invention will be more fully describedhereinafter, and will be more particularly pointed `out `in theclaimsappended hereto.

i In the drawings, wherein like symbols refer` u to like orcorrespondingpartsthroughoutthe i several views, i g f t :Figure 1i is aperspective view of an improved `:cut measurer and signaLconstructed inaccordance with the `present invention and shown coupled to thesandroller of` a loom, vindioatedin c chain lines.

to; Swift Manufacturing `(lompanyl, C olumbus Gaf e corporatie@ PfGeorge i Appiicationrulyfn,1941, serial No. 402,826

` 8 claims.` (cifras-44o) `Figure 2 is also a perspectiveview of theimproved cut measurer-and signalyas seen from an opposite end,illustrating the gearing and also the sand roller, the latterbeingbroken away. A

- Figure 3 is `a top plan view, on an enlarged scale,` and with partsbrolen'away," ofthe improvedcut-measurer andsignal.` A -i i Figure 4 isa central vertical section taken longitudinally `through the same on thelinel-I in Figure 3. f

. Figure' is a horizontal central section Vtaken Figuref. is. averticalI cross section taken" on the lineVE-B in `Figure 4.`

Figure 8` is` a fragmentary perspectiveview of one section ofA theautomatic` circuit controller -with both `member switches in openposition.

. Figure 9 isa front elevationl looking from the` `right in Figure8.withithe 'controlplunger retired `and the .two member switches bothclosed. 1

f Figure 10` is` asimilar view showingthe subsequent phase in whichcontrol Aplungeriis in advance position prying open both member4switches;` i i i :Figure 11 is a cross section taken on the line ll-HFigureiQ,` and f f VFigure 12 is a diagrammatic view n'cuit diagram'showing the wiring of the improved .device to the standard circuit of a1oom.,-`

Referring more particularlyito the drawings,

iin Figure .1 there` is shown in dotted or'lchain llineswa conventionalform of `loom of :which-the lsandroller is designated atl5. 1 1 f Asl`shown in Figures l and 2, the sandroller l5 is equipped with a pinion.I6 fast thereon u disposedin mesh with a gear wheel 11,Which in rollerI5,

.turn "meshes :with a pinion I 8.

The `pinions I E and l 8f and the `gear wheel I1 form a suitable-gearritrain i for-` communicating the rotary motion f ofthe sandrollerl5 to the ;improved cutmeasurer and signal which is housed forconvenience in a container i9 affixed in any suitable manner to the loomframe adjacent one end of` the sandstiu` referring to Figures 1 and 2,theiopof the container i9 is shown as having a window 20, @covered byplain or lensglass or other translucent material .thro-ugh which avisual signal is displayed for theattentionand information of the loomattendant' or i operative; and exposed externally of the containeriS isthe handle 2'I of a" manual switch operable, by such attendant ashereinafter described.A

including crv VIelfxlrleshed gearf- .train-f i The gear reduction unit.,LcaI.`

The H Y u 1 nose'5 l.' Such 'no-se nts betweenthe longerlspring 75Referring more particularly to Figures 3 to 7 inclusive, 22 designates ashaft mounted through an end wall of the casing l!v upon the externalend of which the pinion IS is made fast and `upon the inner end of whichis iixedly secured a pinion 23 meshing with the initial gear 24 of agear reduction unit constructed as follows:

The initial gear 24 is loosely mounted on the shaft 25 adhas fasttherewith a single-tooth gear 25; At'each revolution-of gears 24, 26,the lo tooth 2l encounters star wheel 28 loose on shaft A 29 and rotatesthe same one step. Star wheel vc'arries with it pinion 30 which isdisposed in con: tinuous mesh with a second gear wheel 3| of thereduction train. This second 'gear wheel 3l and.` la

its single-tooth gear 32 are loose onthe shaftq25.'

tooth 33 will engage and rotate one step a secondv g j star wheel 34which, with its associated pinion 35m is mounted for loose rotation onthe shaft` 2'9r20 Binicng'gs meshes J with the third gear WheelASB ofthe ,reductiontrainwhich carries fast with it Ithefsinglei-,tooth gear3] having the tooth 33 meshing with, starV wheel 39, the pinion 4a of ywhichlmeshes with the last gear wheel 4l ofthe reductiontrain.v Thislast gear wheel 4l loosely rotates about shaft 25vr and has affixed tothe side ihereofazcam disc 42. t

' suitable form and supported and driven irrany 'appropriate manner.Such reduction gear may becorn-posed 0f? any Suitable number `ofgearnnits other-than the three units herein shown and.'` defcribedg iund this form` of gear reductiom pro- 40 ).ducinggasitgdoes; verysmallmovementjin the cam disc l;l` Lcomparatively to the revolution ratevQthe lsanrircllerV I5, vto beconvenient andv suitahlefor thepurposes ofthis invention.

1 Dueto theifreedorn of the various gear wheels if upon shaft 25,detents i4 are preferably engaged therewith ,to arrest'rotation of acasual or. accidental nature, but yielding to permit the enforcedrctationfof the vparts under. thezcompulsion ofthe w may bemcuntedzupona frame 45 installedasla .unitxwithinthacontainer:,I9.

Theucam :disc .42 operates as a controller'l for automatic switcheswhich 'governi-the stoppage of the 100m and theiiiuminanon of the iamp4s ,55 housedwithin the containerA [.9 below thawinidQWfZ. 1i i l y Y e?As.' shown in. Figures 4, `6 and '7, plungers 411 fand'd arrangedvertically one above another at 1diametrically opposite sides of the camdisc. 42 60 :bearat their inner vends againstrthe volute periph-'eraTcurver'Of the'disc and' are guided in their reciprocatingmovements, incident to therotation =of`thedisc 42 by the Yhorizontalarms t5 'of a ver- 'tically-disposed- 'frame' ilfwhichV may be alii-xed'D to the gear reduction frame 45 or to any-other appropriate'support inthe container i9. Q alftefer'ring more particularly to Figures Sto 11`-'inclus'ii/avone' plunger 4'lwith its member switches `70 A disclosed,theunit on the '.diametrically ,op'

posits side or the disc belier-g` smsstanuauy` identipli'nigerlhasalrounded ortaperingiouter contact bars 52 and 53 which are biased byinherent resilient action to move together to close against their shortcompanion contact bars 54 and 55. The presence of the nose 5l in aprojected `position, as shown in Figure 8, causes spring fingersor-co-ntact bars 52 and 53 to be expanded or pried apart from theircompanion` bars 5 4 and 55, thus opening both switches. The contact bars52 and 55 form one member' switch and the contacts 53 and 55 form theother memvber switch of the unit at one side of the cam disc.

The wouter portions` of the contact bars are segregated betweeninsulating plates 56 and the entire double switch unit may be carried byand n --att'ached inany suitable way to a carrier member At eachrotation of the gears 3l, 32, the single?" 51 erster'ridingv from aplate 58 which plate extends alongside the'arrn 49 of the frame 55. Thebinding posts or connecting strips for the switches are lindicated at 59for contact 52, G for 54, I6! for contact 55 and |62 for Contact 53.

Elaringjawsvfi on the spring contact barsji52 f and- V53? extend axiallytoward and along the nose 5I and are inclined and rounded-,forthe-purpose lci better cooperating with a more extensive surface yof theccnicalvor,conoicial surface of the no??? 55H2' Y l 1 Referring moreparticularly to Figure 12; the

oppositeplunger 48 moves, in and out between springcontact bars 52 and6'3;whichformpmember. switcheswith shorter` contact bars 54 an'dJEE.These various contacta bars are4 insulated' .from oneanother byinsulating blocks 65. The blocks and..intervening contacts aresecuredtogether in any suitable way :andA aiiiXed to a carrierV mem# ber 61.Ihebindingposts 58, 69; lzandflli are respectively for the-,contacts62,54, 55 and2S'3'.-.

Further r'referring to4 Figure l2, the manual switch,` ,they handle 2l-of which projects onv the exterior of the casing` lows; V 1, 1, ,Y c"Ihe handle cr. button 2l: isapart of an insulating body ilmcunted, toslide back and forth horizontally in a cradle orsuppcrt 13 suspendedfrom aplate orescutcheon. T4 afhxed by4 appro'- priate fastenings E5vtothe top ci the container I9. ufthe cradle,y or'support i3: islet inthrough @10965135.115- in'illeitf'ip^ ofthe casing and',l the handlel,or button 2t of? thfswitch project-s1 up through a slot lila in'.,thei'p'lat'e 74. The switch body, carricslcontacts la? and 9 movableover selected Xed contacts'B0;.5i,`82,l183, t4', 85 sup'- pcrtedin thecradle '1,3 zand; havingrounded up# f perheads placed in alnement and injuxtaposition. `The contactsla" and 'mi are of awidth to close againsttwo adjacent xed ccntactmembers., The'movablelcontact18 maybe af'iiatdisc projected outwardly by .aaspring' at,4 enveloping ,fthGStem 8-1 -ofthe contact. 8d' which partsare: all mounted: for reciprccation. inacavity-158i in the insulating'body7.2;',l f j The other ccntactrmeni-herla i'spreferably: in

the form of a ball, the contour of whichI conforms vto the incurved'`surfaces formed between` aremounted foramovemcnt ina cavity Sazofthe 5The manual` switch isi Capable :of 'rmov'ement' to twopositions, oneofwhich: is. shown in Figurer 12 in which the ball 19 engages xed,contactsLRU I9, is constructed as fol;-

`and 8| and the other movable cont-act 18 engages 'fixed ,contacts 83and 84'. jIn `the otheror left hand position of the switch thewball 19,will en.- i

gage contacts 8| and 82 while the iiat movable `contact 18 will engageixedr contacts 8,4 and185. ,'fI'husin either position yof the manualswitch `ixed contacts 8| and 84i`wil1`be closed; in one `position of theswitch with Athe respective contactsBD and 83; in the otherposition ofthe Vswitch with the contacts 82 and 85. i i i i Referring particularlyto ligure 12the `power `is broughtin `through the usual mains, forinstance at 550volts A. C.,to the transformer 9| g which steps thecurrent down,` for instancelto l12 `voltsA. C. This isfin `accordancewith customarygusageinloom-practice to. provide electric current forthestop motion ofthe loom. `Such stopmotion includes the stop motion bar $2and the drop wires, one of which is indicated Aat S3,

,having eyes 94 for the passage of the thread.

lead 55 electrically connects the stop motion bar --directly with theknock-oir handle |00 of the ,loomi Q31' Also inaccordance with standardpractice the electromagnet 95 is connected by lead 98 with `thecircuitbreaker `switch 9,9.which is connected .in the usual manner tothe shifter handle of `the loomwhich controls the operation thereof.

Inacccrdance withythe present, invention, I` Atap, into the existingstop motion circuit by con- ,"necting the stopgmotionb'arby lead I GItofthe `nxed contact `84 of the manual switch, while the fother lead |02of` the mainisupply circuit is connected .by une branches `m3 and m4'ywith the @binding posts 68 andv 59 respectively on the op- !:positecontroller units.

The p binding ,post 69 at one` side of` the controller is-connect-edbythe "-Llead |55'with iixed contactv 80 `oi the manualv iyswitch,gwhilethe binding post at the other yside of lthe controllerlis connected bythe lead |06 to the iixed contact 82" of the manual switch.

isJ grounded as` indicated.

i The piece 91 actuated by electrcmagnet 96 is connected indirectly withthe knock-off handle `Il!!! of theloom. This ,member 91.. when thrown upbyelectro-magnet 96, comes in contact with 15a: projection ||0 on thelay of the loom. A spring connects the handle |88 `with the fcircuitbreaker switch 89.

liifIn operation, the main circuit for operating fthe loom is closed.inthe customary manner by 1 @the shifter lever |55. The loom continuesin op- ,leration weaving the` cloth. `,Incident to `this operationthe-sandroller I5 is being continuously `rotated and the revolutionsthereof incident to lthelweaving of a predetermined length yor yardwage`of cloth isV vcalculated with reference `tothe gear reduction unitwhereby after su-ch prede- -'termined lineari amount of cloth has beenwoven fthefc'am disc 42 will have been Arotated through one-halfrevolution or through an angular dis- Atance -of `180?.` The cam disc 42is soltimed that menige point; 431er "the cam will move `out of contactwithnie'mvoivedipiunger 41 or 4s at ,-92fwith electro-magnet 96. Theelectro-magnet V Bscontrols the pieceS'l which is connected inthe `timewhen the predetermined `yardage, has

been completed. The inner movement of the plunger which follows thisrelease allows the associated switches to close. The diametric oppositepoint of the cam Idisc engaging the opposite plunger at substantiallythis time thrusts such opposite plunger outwardly to causeV opening ofits 'associated switches at the other side of the controller.

Assuming the parts in the position illustrated in Figure `12 with themanual switch 2| shifted to the right hand position, `with the highpoint of the cam shoulder 43 beneath plunger` 48 forcing it outward tomaintain open the member switches 62, 64 `and 63, 65; the oppositeplunger 41 being at va low point of .thecam so that it is forcedinwardly by spring pressure of ,the member switches allowing `the`member switches 52, 54 and 53, 55 to close. The closed condition of`these last `mentioned member 4switches however does not affect theoperation of kthe loom nor the illumination `of the signal lamp 46 dueto the fact that the manual switch has been moved to the right handposition, Ydisconnecting the cir-cuit of member switch 53, 55 at theopen xed contact 85 of the manual switch, V

and disconnecting the circuit through the closed member switch 52, 54through the liixed contact `82 of the manual switch, which fixedcontact82 is unconnected with either of the movable contacts 4 V fromtheleft hand position, which it`occupied `in the formereventuality, intothe right hand position it is seen to occupy in Figure 12, thus openingthe previously closed circuits at the xed contacts 82, 85 as justexplained.

' Thus in opening these previously closed controlcircuits the loomatten-dant has at his command, through the manual switch,` an agencytoimmediately'place the loom in condition for a resumption of` operationwithout interference from the continued closed condition of the circuitsthrough the member switches 52, 54, and

i In moving the manual switch :to suspend operation of the memberswitches 52, 54 and 53, 55 at o-ne side of the cam disc 42, the loomattendant simultaneously, and by the same action,

V,places the member switches 62, 64- and 63, 65 at i the opposite sideof the cam disc 42 in a potential position to close the loom circuitcausing i loom stoppage vand the illumination of the signal lamp 45 atthe next completion ofthe required lineal yardage of cloth woven. Whenthe manual `switch is shifted to the right in Figure 12 the 4right handplunger 48 is in a projected position an-d the member switches 62, 64and t3l 55 are thus open. Therefore the loom may continue in operationuntil the shoulder 43 moves off the `plunger 48 `and allows the plungerto move inw64, binding post B8, lead `|05 to the manual switch ,1 toand`through contacts 8E), 'I9 "and 8|, and by lead ma to the lorhp 4o :tudrits ground. Ai the saine timethe other member switch closes a circuitfrom the transformer secondary through the 'rcllt'breakr Switch 99',leads Q8, 95, Il to th liianu'al switch, through lcontacts 84, 'i3 and83 thereof, lead IBS, binding post 1|, ln'inloi' switch 63, E5 andbinding post't to goifi'rd thus causing the operation of the shifterlev'r H50' to cause stoppage of the loom. i i

- lijslth'e highp'oiht 43 of thei cath disc' 42 'rotates 'past the innerehu ofthe right hohdpl'iihg'cr' mi, Asuch plunger isdriven radiallyinward the spring action of the contacts 62 and 63 and switches c2, ai,ce, es promptly close. switches will remain closed until the disc l2rotates an angularV 'distance to bring the' high point of the cam again'beneath plunger 48. This vvill occur after approximately 180 revolutionof the disc lit'. During this long' interval the opation of the looinmust be resumed andthe signal light it extinguished. Therefore theclosed member switches '62; 64 'and E3, 65 n'il'st', '""`ln`edia"telyafter the performance of theirY func'- in stopping the'loornattherecil'liifeifiI yard'- age'and giving the signal kthereof t'o theoperator of this reason for loom stoppage, be rendered' in'- eiective;and this is accomplished by the arrangement oi the manual switch, thehandle 2l `of Whichis vexposed externally of the casing [53 for themovement .by thehand of the loom attendant. By shifting su'ch manualswitch tol the lefty in Figure 12 the member switches at the right handside of the controller are simply cu't out of all connection with theloom operating circuit and Vwith the signal lamp circuit.V In doing thisthe manual switch re-est'ablishesthe poftentiality of the other member*switches at the 'th'cam disc is so constructed that the other plungeris moved to switch openinglp'o? t1 :whereby the loo-m attendant mayuhm-v shift over the manual sti/'itch to enable him to e'- establishloom opera-tion and extinguish the sirgnal light. 0 l

The lens or Window 2D in the casingr lil above vthe signal lampv 46maybe in color, for instance red, to incre eiectivelyv'attifact theattntion of the operator or looni attendant and-the illumin- `.tion ofthe lamp or of the Window or its lis 2'9 isi an indication to the loomattendant that the vlooln stoppage has occurred b'ecauseuoi tion of thepredetelininedlinear yardage of cloth lllvoven rather than because ofany other cause of loom stoppage. Such loomy attendant is thereupon puton notice that otherwise the loom is functioning properly and orderlyand he( therefrc has no need to examine the loom foi-)possible defectsoccasioning stoppage.

The extension loom stoppage circuits as Well as the lanp circuit', thecontroller and inan- Y r9 -irom which`v ohi'y the twolea'ds lill' .andm2 entend, 'the' one to the stop motion bar 92 arid the other to thesecondary 01 the transformer 9i by-passing the circuit breaker switchSQ.

Itis olo'viousV that various changes and mdi- Y l'cations may be' madein the details of construction' and `design of the above specic'allydescribed embodiment of this invention Without departing ,l

lcftfhohd side of the device, which during the hohl the soi-rit thereof,such charities ond ihodijncstioiis; this; iestriciedohly hy thescorie/ot the follovvinigr claims:

What claimed ist' Y Y .Y l. In a Iobin having an electric stop inutili,`esiter'isioh electric mean-s connected to the stop ir'ioti'oh Aforycausing'l lojom' stoppage when a o'r'edriyteririiiic'dl out has beenwovon arid compris; ihg 'a' controller having means driven from the mand a plurality of `Is"et`s of nioval stvi't'h riieihbers controlled ifitheir opening arid closing movements by sa-id last-named means foractuating the electric stop motion, a manual switch in 'circuit `tiithsa'id switch members and the elc"- tiic stop rrifo'ticri forcontrolling' the ootehti'liiy 'of -tli 'sets f syvit'cli ln'embers tocauseY loom stoppage' through the 'stop motion, arid sigel hieahs incircuit with said manual switch'ar'ld said switch mei'nbers. i

2. ih a loom having ari electric stop motioii, rhcah's to Autilizesaid-stop' ih'otiori for stopping theio'orri when s predetermined out ofcloth is Woven comprising extension circuits yfo'rilliifg cohtihuatioiisof the electric stop nichon, a' plurality of automatic switches in saidcircuits', rrijeahs 'driven by the loom to 'cause opening and permitclosing of said automatic switches lternatiy, a manual sviitch 4circuitwith the autoln'aticms'witch'es and stop4 motion to select thealftomatic switch which at any given time enerected to' the electricstop motion irl operative relation thereto, signal means, Isl'g'l'i'e'ilcircuits ther'efo, controller for controlling tl'iel openihg aridclosing of the' stop circuits .to potentially cause I''om' stoppagethrough the electric stop motion; arid a manual switch included in allsaid 'hits foiselec'tiv'ely governing the' saine.

Iii a lo'oiri having ah electric sto'p" motion a il rotating shalt,`means to stoo thev loom and play a' signal when a predetermined out hascompleted comprising 'a plurality 'of extensioi'i stop circuits'connected to the electric' stop 'rhtioh ih operati@ relation thereto,si'ghal inscris-Asiatin circuits therefor, a' controller for controllingthe opening anu'closihg'of said' stop '-a"n"d signal Circuits, 'arduction gear for driving said controller from the`V Toorn shaft, and amariualswitch included inail said circuits for selectively governing thesaine.

45L In a loo having ah electric 'stop` 'motion Y ah'd c nVStatih-glshalt; mcans to stop the loorri and display' a 'signal Wh'e'n apredetermined cut.has

'-lieencompleted comprising a plurality of extension sto-p circuitsconnected to" the electric' stop '6; In a' loom having an electric stopmotion,

nested itv the; electrica@ moiipiiineperetlve relation theretdsignalmeans, signalmcircuits for said signal means, pairsof member switches,one switch of each pair in one `of the stop circuits and the otherswitch ofthe pair in one of the l signal circuits, said member switchesbeing biased to closed position, one switch pair angularly ofiset fromanother switch pair, a loom-driven con-` troller constructed "and`arranged to open the switch pairs alternately at stated intervals of`loom operation, and a manualswitch in all said stop and signal circuitsso constructed and arranged as to control the completionof the stop andsignal circuits through each member switch r pair and to open saidcircuits of any pair after `the same have been allowedby said controllerto close. l l t 7. The combination of claim 6, in which the controllercomprises movable members having tapered parts to enter between and pryapart springcontacts of the member switches, said spring contactsreacting on said tapered parts to` l eject the members and allow closingof the memspringcontacts to force same apart to open the member switchpairs, said spring contacts reacting on saidtapered noses to drive theplungers inwardly and `allow of closing of the member switch pairs sosoon as the high point of the cam passes a plunger. i

HERBERT HUGH HUGHES.

